TM 3-6665-302-34
FUNCTIONING OF EQUIPMENT
M43 DETECTOR UNIT
Section I.
Solution is pumped from the solution reservoir
2-1. Pneumatic System Operation
assembly back into the detector cell.
Air is drawn into the M43 detector unit through
the case top at the air inlet port and passes into
the detector cell. Solution is pumped from the
a. The detector cell (1A2A2A3V1) detects
reservoir assembly by the pump assembly into
very low concentrations of chemical agents in
the detector cell to form an air-solution mix-
the forms of vapor or inhalable aerosols. Chemi-
ture. The air-solution mixture is drawn from
cal agents increase the electrical output of the
the detector cell into the solution reservoir as-
detector cell. This triggers the electronic module
sembly where the air and solution are separated.
assembly (1A2A4 ) causing the horn (1A2A5A2)
Air is pumped from the solution reservoir as-
to sound. At the same time, voltage is removed
sembly and exhausted through the air outlet port.
MU397901
diagram
